Install wasn't too bad. Note there are different length bolts within 5 mm so sort them before starting. Install took about 30 mins, lifted front end on crates to get enough clearance. No need to remove the deck. Unlike previous mulch kits from JD, the deflector has to stay on for this one (no plug for Z335e). Something to note if you need to get through a gate (like me). Lever is nice but I have no plans to side-discharge.